KR20070086371A - Led 유닛의 광출력을 제어하는 피드백 제어 시스템 - Google Patents

Led 유닛의 광출력을 제어하는 피드백 제어 시스템 Download PDF

Info

Publication number
KR20070086371A
KR20070086371A KR1020077013768A KR20077013768A KR20070086371A KR 20070086371 A KR20070086371 A KR 20070086371A KR 1020077013768 A KR1020077013768 A KR 1020077013768A KR 20077013768 A KR20077013768 A KR 20077013768A KR 20070086371 A KR20070086371 A KR 20070086371A
Authority
KR
South Korea
Prior art keywords
light
light output
frame
control system
emitting unit
Prior art date
Application number
KR1020077013768A
Other languages
English (en)
Korean (ko)
Inventor
랄프 커트
에듀아드 제이. 메이저
Original Assignee
코닌클리즈케 필립스 일렉트로닉스 엔.브이.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 코닌클리즈케 필립스 일렉트로닉스 엔.브이. filed Critical 코닌클리즈케 필립스 일렉트로닉스 엔.브이.
Publication of KR20070086371A publication Critical patent/KR20070086371A/ko

Links

Images

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20Controlling the colour of the light
    • H05B45/22Controlling the colour of the light using optical feedback
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10Controlling the intensity of the light
    • H05B45/12Controlling the intensity of the light using optical feedback
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
KR1020077013768A 2004-11-19 2005-11-14 Led 유닛의 광출력을 제어하는 피드백 제어 시스템 KR20070086371A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04105921.3 2004-11-19
EP04105921 2004-11-19

Publications (1)

Publication Number Publication Date
KR20070086371A true KR20070086371A (ko) 2007-08-27

Family

ID=35517519

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020077013768A KR20070086371A (ko) 2004-11-19 2005-11-14 Led 유닛의 광출력을 제어하는 피드백 제어 시스템

Country Status (9)

Country Link
US (1) US7786678B2 (ja)
EP (1) EP1815719B1 (ja)
JP (1) JP2008521237A (ja)
KR (1) KR20070086371A (ja)
CN (1) CN100488329C (ja)
AT (1) ATE463145T1 (ja)
DE (1) DE602005020347D1 (ja)
TW (1) TW200625246A (ja)
WO (1) WO2006054230A1 (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008036092A1 (en) * 2006-09-21 2008-03-27 Thomson Licensing A method and system for three-dimensional model acquisition
WO2008083695A1 (de) * 2006-12-20 2008-07-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Vorrichtung und verfahren zur messung der intensität des lichtes einer ersten gruppe von lichtquellen einer beleuchtungseinheit
JP4944635B2 (ja) * 2007-02-15 2012-06-06 本田技研工業株式会社 環境認識装置
DE102007034177B4 (de) 2007-07-23 2009-06-10 Diehl Aerospace Gmbh Verfahren zum Dimmen des von LED-Leuchten abgestrahlten Lichts, insbesondere in der Fluggastkabine eines Verkehrsflugzeuges
CN101755483B (zh) 2007-07-23 2012-05-30 皇家飞利浦电子股份有限公司 发光单元装置及其控制系统和方法
EP2186381A1 (en) 2007-08-02 2010-05-19 Nxp B.V. Electronic device having a plurality of light emitting devices
DE102007036978A1 (de) * 2007-08-06 2009-02-12 Tridonicatco Gmbh & Co. Kg Vorrichtung und Verfahren zur Steuerung der Lichtabgabe
CN102144429A (zh) 2008-09-04 2011-08-03 皇家飞利浦电子股份有限公司 用于驱动多色光源的方法和器件
JP4868025B2 (ja) * 2009-05-25 2012-02-01 サンケン電気株式会社 電流均衡化装置及びその方法、led照明器具、lcdバックライトモジュール、lcd表示機器
DE102009030733B4 (de) 2009-06-26 2015-11-05 Diehl Aerospace Gmbh Verfahren und Einrichtung zu farbvariabler Beleuchtung
US8390205B2 (en) 2010-09-01 2013-03-05 Osram Sylvania Inc. LED control using modulation frequency detection techniques
US8384294B2 (en) 2010-10-05 2013-02-26 Electronic Theatre Controls, Inc. System and method for color creation and matching
US8593074B2 (en) 2011-01-12 2013-11-26 Electronic Theater Controls, Inc. Systems and methods for controlling an output of a light fixture
US8723450B2 (en) 2011-01-12 2014-05-13 Electronics Theatre Controls, Inc. System and method for controlling the spectral content of an output of a light fixture
US8729815B2 (en) 2012-03-12 2014-05-20 Osram Sylvania Inc. Current control system
US9060410B2 (en) * 2013-07-25 2015-06-16 Terralux, Inc. Active flicker cancellation in lighting systems
JP2016151893A (ja) * 2015-02-17 2016-08-22 株式会社東芝 画像処理装置、物品処理装置、及び、画像処理方法
GB2547428A (en) * 2016-02-16 2017-08-23 Feasa Entpr Ltd Method and apparatus for testing optical outputs
US20190187721A1 (en) * 2017-12-15 2019-06-20 Ankobot (Shanghai) Smart Technologies Co., Ltd. Control method and system, and mobile robot using the same
KR101973501B1 (ko) * 2018-06-15 2019-04-29 엘지디스플레이 주식회사 발광다이오드 구동회로 및 그 구동 방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471052A (en) 1993-10-25 1995-11-28 Eaton Corporation Color sensor system using a secondary light receiver
US6495964B1 (en) 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
FI109632B (fi) * 2000-11-06 2002-09-13 Nokia Corp Valkoinen valaisu
US6507159B2 (en) 2001-03-29 2003-01-14 Koninklijke Philips Electronics N.V. Controlling method and system for RGB based LED luminary
US6741351B2 (en) 2001-06-07 2004-05-25 Koninklijke Philips Electronics N.V. LED luminaire with light sensor configurations for optical feedback
US6630801B2 (en) * 2001-10-22 2003-10-07 Lümileds USA Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes
JP3987772B2 (ja) * 2002-08-12 2007-10-10 アルパイン株式会社 バックライトの輝度制御方法および装置
JP3715616B2 (ja) * 2002-11-20 2005-11-09 Necディスプレイソリューションズ株式会社 液晶表示装置及び該装置のコモン電圧設定方法
US7148632B2 (en) * 2003-01-15 2006-12-12 Luminator Holding, L.P. LED lighting system

Also Published As

Publication number Publication date
TW200625246A (en) 2006-07-16
ATE463145T1 (de) 2010-04-15
EP1815719A1 (en) 2007-08-08
WO2006054230A1 (en) 2006-05-26
US7786678B2 (en) 2010-08-31
US20090140659A1 (en) 2009-06-04
CN100488329C (zh) 2009-05-13
CN101061753A (zh) 2007-10-24
DE602005020347D1 (de) 2010-05-12
EP1815719B1 (en) 2010-03-31
JP2008521237A (ja) 2008-06-19

Similar Documents

Publication Publication Date Title
US7786678B2 (en) Feedback control system for controlling the light output of a LED unit
US8159155B2 (en) Light emitting unit arrangement and control system and method thereof
US8471807B2 (en) Calibration of displays having spatially-variable backlight
KR101193908B1 (ko) 발광 다이오드 기반 광 시스템과 그 제어 시스템 및 제어방법
RU2419888C1 (ru) Устройство задней подсветки, способ управления задней подсветкой и устройство жидкокристаллического дисплея
KR101370339B1 (ko) 백라이트장치 및 그 제어방법
US7242156B2 (en) Light-emitting semiconductor device pulse drive method and pulse drive circuit
KR101212617B1 (ko) 조명장치 및 그 제어 방법
US20110057571A1 (en) Device and method for controlling the color point of an led light source
US7193356B2 (en) Image display apparatus
JP2006209054A (ja) 照明装置及びこれを用いた表示装置
WO2009040705A2 (en) Method and apparatus for light intensity control with drive current modulation
JP5089501B2 (ja) 液晶ディスプレイ装置、発光装置、発光バランス制御装置および発光強度検出装置
KR101388977B1 (ko) 액정표시장치의 백라이트 구동방법 및 장치
KR101352107B1 (ko) 액정 표시장치 및 그의 구동방법
KR100603760B1 (ko) 디스플레이장치 및 그의 구동 펄스 제어 방법
US20110169414A1 (en) Calibration of light elements within a display
JP5016322B2 (ja) Led制御システム
JP2008210887A (ja) Led制御システム
US11805585B2 (en) Light emitting diode, LED, based lighting device arranged for emitting a particular color of light, as well as a corresponding method
KR20120012877A (ko) Led 광원의 구동 장치
JP2017111545A (ja) 表示装置
JP2004303531A (ja) 照明制御装置およびled照明装置

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee